1,2-Butanediol

CAS 584-03-2

U.S. production volumes are classified as confidential business information.

US productionCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Import value, 2024$82M

Top sourceGermany 18%

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 290539 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 290539, which covers 48 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

DE 18%GermanyKR 16%South KoreaBR 11%BrazilTW 8%TaiwanMX 7%Mexico

Canada
Liechtenstein
Israel
Ireland
Portugal
Ukraine
Singapore

Domestic parents -- activity not disclosed (2)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Kowa Holdings America

Solvay

EPA-registered importers (1)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Why It Matters

Sectors

Paper & Printing

Downstream UsesNot recorded

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Industrial Uses

•Solvent in Printing Ink Manufacturing (100%)Processing—incorporation into article

Vendor Pricing

$0.10/gA2B Chem LLC

CountryUnited States

Pack$49.00 / 500 g

Purity98%

Vendors15 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

14 more vendors

Vendor	Country	$/g	Pack	Purity
AA BLOCKS	United States	$0.11	500 g	98%
Aaron Chemicals LLC	Hong Kong	$0.12	500 g	98%
Angene Chemical	China → Hong Kong	$0.14	500 g	98%
Sigma-Aldrich (Rush Stock)	Germany	$0.19	250 g	98%
Sigma-Aldrich	Germany	$0.19	250 g	98%
BLD Pharmatech GmbH	Germany	$0.23	1 kg	98%
BLD Pharmatech Ltd.	China	$0.23	1 kg	98%
Ambeed, Inc.	United States	$0.25	1 kg	98%
Combi-Blocks, Inc.	United States	$0.25	1 kg	98%
AK Scientific Specialized	United States	$0.27	100 g	97%
BLD Pharmatech Co., Limited	United States	$0.30	500 g	98%
AK Scientific, Inc.	United States	$0.36	100 g	99%
Angene International Limited	United States	$0.77	100 g	98%
AstaTech (2 weeks)	United States	$1.56	25 g	95%

Chemical Identity

CAS584-03-2

PubChem CID11429

DTXSIDDTXSID6040375

FormulaC4H10O2

Mol. Weight90.12 g/mol

SMILESCCC(CO)O

Data Sources

EPA CompTox (DSSTox) · DTXSID6040375Retrieved 2026-04-06
PubChem · compound 11429Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

1,2-Butanediol (CAS 584-03-2) https://chemicalindependence.com/chemical/584-03-2/ EPA CompTox (DSSTox): DTXSID6040375. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID6040375 PubChem: 11429. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/11429 EPA Chemical Data Reporting: 584-03-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 584-03-2. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290539 for CAS 584-03-2. Reporting year: 2024. https://usatrade.census.gov/